But do we know exactly the source of the leak down? It isn’t good now and it may get worse over time, then he will be back to square one.I think you are getting 3X more leakage in the latest round of testsxwhich is getting close to "abnormal" . Sort of border line but I doubt there is much you could reasonably do to reduce the rate.i would not be rushing to tear things apart or throw money at it.
Dan